The location is not correct. It's actually quite far from Silom road (around 800 meters). If I know the location is far from Silom road, I will chose another place. There is Tuk-Tuk service which can deliver you to Silom Complex but it is only 8 am - 8 pm.
Apart from that, everything is good. The bed is very comfortable, Smart TV, the sofa is also comfortable. Check in check out is really smooth and the staff is very friendly.
Btw, the host is rare reply your message in AirBnB. You just need to search Bandara Suites in the map, and then check in just like a hotel.